var imageFiles_a_22 = new Array();
imageFiles_a_22['0'] = new Array ('_images/a_Gold.gif', '_images/a_GoldMouseover.gif');
imageFiles_a_22['1'] = new Array ('_images/a_Silver.gif', '_images/a_SilverMouseover.gif');
imageFiles_a_22['2'] = new Array ('_images/a_Platinum.gif', '_images/a_PlatinumMouseover.gif');
imageFiles_a_22['3'] = new Array ('_images/a_Palladium.gif', '_images/a_PalladiumMouseover.gif');

function image_on_a_22 (position) {
   var doc = eval("document.imagea_22" + position);
   doc.src = imageFiles_a_22[position][1];
}

function image_off_a_22 (position) {
   var doc = eval("document.imagea_22" + position);
   doc.src = imageFiles_a_22[position][0];
}